知る人ぞ知る

しるひとぞしるshiruhitozoshiru

expression

  1. well-known only to those in the know
  2. well-known but to the few
  3. well-known to a connoisseur

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences